Home / 1,295,181,244.65-1,942,907,958.52-421,850,619.48

Finding the Fourth Proportional to 1,295,181,244.65, 1,942,907,958.52 and 421,850,619.48

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Solution

The fourth proportional to 1,295,181,244.65, 1,942,907,958.52 and 421,850,619.48 is: 632,820,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,181,244.65 : 1,942,907,958.52 = 421,850,619.48 : x
  2. Step 2: Convert to fraction form
    1,295,181,244.65/1,942,907,958.52 = 421,850,619.48/x
  3. Step 3: Cross multiply
    1,295,181,244.65x = 1,942,907,958.52 × 421,850,619.48
  4. Step 4: Simplify right side
    1,295,181,244.65x = 819,616,925,893,229,568
  5. Step 5: Solve for x
    x = 819,616,925,893,229,568/1,295,181,244.65
  6. Step 6: Final answer
    x = 632,820,255.30

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.